cleveland



vw. L. MARTIN mima allel toFigure 1,

'Resend Maf. 1.2, was.'v

UNITED STATI-:s

i Re. 17,237

WENDELL L. MAn'rrN, or CLEVELAND, oHIo, A'ssrenonro THE MARTIN BnorHEns' ELEc'rnro COMPANY, or CLEVELAND, onto, A coBronArIoN orl omo.

DEIEB.

` Original No. 1,660,801, dated February, 1928,- Serial No. 750,584, tiled November 18, 1924'. Application for reissue tiled December, 1928. Serial No. 324,261. i Y

My invention relates to driers and the principal object of my invention is to provide a new andiimprovedfdevice of this type. In the drawings accompanying this specication and forming a part thereof I have shown, for purposes of illustration, certain forms which my invention may assume. In these drawings: j y Y Figure 1 is a general view of this illustra'-l vtive embodiment of my invention, l

Figure 2 is a section through the operating parts of the device taken on a planeupar-` Figure 3 is a diagrammatic representation of the electrical system, while l Figure 4 is a fra 'entary view illustrating a modified form o heating unit. Y

The device shownjin Figures 1 through 3 comprises a fan 11 secured by' means of a set -screw -12 to one end of a shaft 13 forming the armature sha-ft of a motor 14 and supported in bea-rings 15 and 16 carried respectively by two shell sections 17 and 18 which together form a shell completely enclosing the motor 14. Inaddition, the shell sectionl 17 also carries o n its forward end a heating unit 19 comprising a plurality of converging bars 20 having their converging ends 21 secured together in any suitable manner as by bolting and having their diverging-ends 22 connected by means of struts '23 to fins 24 integral with and extendingffrom the forward end of the shell section 17.

` This entre unitis secured toa supporting eans of radially extending ribs ring 30 by 29 integral with both the shell section 17 vand the ring 30 while the entire unit is enclosed by4 a pair of casing sections 31 Vand 32 overlying respectively the rear and forward sides 0fthe ring 30, embracing reduced shoulders 33 and 34 upon the ring 30, and securedto the Yring 30 in any suitable manner, as. by set, screws-35'extending through the casing sec- 4tions 31 and 32 into the 'reduced portions"33\ f and 34 respectively.v The rear casing section 31 is'provided at its central portion with an aperture 36 arranged to permit the entrance of air into the casing and provided witha suitable screen l37 to prevent the entrance of 'dirt 0r other lforeign matter, while the for-.i

ward casing section 32 is provided at its central part with an extension 38 embraced by 'and supporting a tube 39 provided at its free endwith a swiveled nozzle arranged to` direct the a1r in any desired direction.

,ing pivotal 'relation witha similar circular projection 53 carried by a stud 54 provided also'witha pin 55 arrangedto be rotatably received by any suitable socket such as the recess 56 @extending downwardly into the plug,

portion 57 of a cap 58 forming part of a stand 60 v which also comprises a base' 61 proyided with an upwardly extending V rounded by a shell 63- extending 61 to the cap 58' and surrounding at its other shel1 63, an base 61 are-held in assembled relation by means of a rod 64 screw-threadedly engaging-the plug 57, extending from the cap 58 through the shell 60 and an aperture 65 in the base 61, and engaged below the base61byanut6`6. j

The motor 14 is preferablyof the series alternating current type and has its "armature 71 and field 72 connected inseries across the line through acontrol switch 73 carried by the bracket 50', through a speed controlling rhe'ostat 74' carried by the ring 30 andy provided with a shaft 75 extending through the ring 30 and surmounted by an'accessible operating handle (not shown), and through a compensating resistance 75 formed about a'bar 68 carried bythe rheostat 74 and used, when the motor is operating on directcurrent, to compensate for thedecrease in impedance.

plug 62 surrom the base The heatingelement 77 is connected directly .across the line through the motor control switch 73 and a heater control lswitch 78 .also kcarried by the bracket 50. Y

The alternative heating .unit disclosedin .inthe form of an elongated cross (provided with four arms42 meeting at a common june tion line and arranged to support the heating coil 43 with the ends 44 and 45 thereof connected under nuts 46 carried by a pair of bolts 47 which are inI turn provided with' heads 48 overlying and clamping the ends of the circuit wires 70 and are also effective@ Figure 4 comprises a heating unit frame 41 1 70 end the plu 57 of the cap 58. The cap 58,

I secure the frame 41 in 'bracket 50 and the stud 54 the unit may be swung into any desired position, that the construction herein shown makes an extremely light casing while still affording ample support to the operating and heating mechanism within the casing, that the motor shell formation herein shown prevents the air current traversing the interior of the motor and therefore minimizes the likelihood of the air current picking up oil or offensive odors occurring in the motor while at the same time permitting the air current to pass over and cool the motor, that each formation of heater frame herein shown provides a thoroughly rigid yet economical support for the heating element and at the same time serves to prevent and destroy circulatory eddies in the air current, that the rheostat control of the motor permits full control of the volume of air being delivered, either with the heating element on or without the heating element, to thus fully control the volume of thel air current under all conditions and also control the temperature of the air `when the'lieaterl is in o eration, and that the construction shwn in Fligure 4 provides a readily removable heating unit. Those skilled in the art will find additional advantages in the particular emthe advantages thereof.

bodiments of my invention herein disclosed and will also readily realize that these particular embodiments may be variously changed and modified without departing from the spirit of my inventionpr sacrificing It will therefore be Y understood that this disclosure is illustrative only and that my invention is not limited thereto. Y

I claim:

1. In combination, a support, a relatively heavy supporting ring carried by said sup- 'f said ring.

port, a blower carried by said ring internally thereof, a heating unit carried by said blower, a relatively light first casing member supported by said ring and enclosing said blower and heating unit on one side of said ring', and a relatively light second casing member also supported by said ring and enclosing said blower and heating unit on the other side of 2. In combination, a support, a relatively heavy supporting ring carried by said support, a blower and a heating unit supported by support; a blower carried by said ring said ring internally thereof, a relatively light first casing member supported by said ring and enclosing said blower and heating unit on one side of said ring, and a relatively light casing member also supported by said ring and enclosing said blower and heating unit on the other side of said ring.

3. Inrombination, a support, a relatively heavy supporting ring'carried by said support, a blower carried by said ring internally thereof, a relativel light first casing member supported by saidy ring and enclosing said blower on one side of said ring, and a relatively light second casing member also supported by said ring and enclosing said blower on the other side of said ring.

4. A drierfcomprising a motor, a fan op` erated thereby, a heating unit in the path of the air Current set up by said fan and effective to warm the air in said current, anda resistance arranged in the circuit of said motor and also positioned in the path of said current but ahead of said heating unit.

l 5. A drier, comprising; a support; a relatively heavy suppoi'ting ring carried by said support; a blower carried by said ring internally thereof and including an electric motor and a fan on the shaft of said motor; a relatively light first casing member supported bv said ring and enclosing said blower on one side of said ring; and a relatively light second casing member also supported by said ring and enclosing said blower on the other side of the ring.

6. A drier, comprising: a support; a relatively heavy ring carried by said support; a blower carried by said ring internally thereof and including an electric motor and a fan on theshaft of said motor; a relatively light first casing member supported by said ring and enclosing said blower on one side of said ring; a relatively light second casing member also supported by said ring and enclosing said blower on the other side` of the ring; and a heater, for heating the air current set up by said blower, mounted within said casing' members supported by said motor.

'7. A drier, comprising: a support; a relatively heavy supporting ring carried by said 1nternally thereof; a relatively light and short inlet casing member supported by said ring, provided with inlet aperturing` and enclosing said blower on one side of said ring; and it relatively light out-let casing member also supported by said rino and enclosing said .blower on the other side ofsaid ring; said 9. Avdrier, comprising: asupport;arg-ela.; tively heavy supporting ring' carried by saidV support; Aa blower carried by said ring internally thereof; a relatively light and short I inlet casing member supported by said ring,

provided with inlet aperturing, and enclos-4 ing said blower on one sideof saidring; a

I rrelatively light elongated outlet casing member also supportedby said ring and enclosing said blower on the other side of said ring;

and a heater withi-nsaid outlet. member for heating'the air current setup by said blower;

said blower comprising a-fandisposed insaid inlet member adjacent'said aperturing.V

10. A drier, comprising: a support; a relatively heavy .supporting ringV carried by said support; a blower carried by fsaid ring interand a fan on the shaft of said motor; a relatively light and short inlet .casing member supported by said ring, provided with inlet apertur/ing, and enclosing said blower on one side of said ring; and a relativel light out-v let casing member also supported y said ring and' enclosing said blower ony the other side of said ring; the fanof saidblower being disposed withii said inlet member adjacent said inlet aperturing. Y I

11. A drier, comprising a support; a-rela# tively heavy supporting rin` carried by said support; a blower carried ternally thereof; a lrelatively light inlet casing member supported by said ring and enclosing said blower on'one side of said ring; a relatively light elongated outlet casing member also supported by said ring and enclosing said blower on'the other side of said ring; and a heater, for heating the air current set up byV said blower, mounted within said outlet member supported by said ring.'

'Y 12. A drier, comprising: ya support; a relay tively heavysupporting ring carried by said support; a blowencarriedby said ring internally thereof; a relatively light inletcasing member supported by said ring and enclosing said blower on one Side of said ring; a rela tively light elongated outlet casing member also supported by said ring and enclosing said 'blower on the other side of said ring; and a heater, for heating thefair current 'set up by said blower, mounted within said outlet'member'supported by said blower. i

- 13. A drier, comprising: a support; a relatively heavy supporting ring carried by said support; ablower carried by said ring internally thereof and-including an electric motor Y eriY and a fan on the shaft of said motor; a relatively light inletf casing member supported 'by said ring and enclosing said blower on one one side of said ring; a relatively light elonp cent said aperturing. nally thereof and including anele'ctric motor vvside-ofsaid ring; a relatively light elongatedV outlet casing member alsosupported by said -ring andV enclosing said Vblower on the other i' side of said ring; and a heater', for heating the air current set up by said blower, mounted motor.

vm v'within said outlet member supported-bysaid i 14. A drier, comprising: a support a rela-V motor and a fan on the shaft-of said motor; i

a relatively light and short inlet `'casing memy l, Y ber supported by said ring, provided with in V 1 let aperturing, and enclosing said blower-on.

rated outlet casing member also supported by said ring and enclosing said blower on the 'other side of said ring; and a heater: Y L

Vwithin. said outlet member for heating the air current set up by said blower; said fan being disposed in said inlet 15. A drier, comprising: a support; a relatively heavy supporting ring carried by said support; a blower carried by said 'ring internally thereof; a relatively light and short inlet casing member supported by said ring, provided with inlet aperturing, and enclosing said blower on one'side of said ring; a relatively light elongated outlet casing *member also supported byl said ring and enclosl member adj a-4 ing said blower on,the other side of saidV v ring; and a heater,for heating the air current set up by said blower, mounted within said outlet member supported by said ring; said` blower comprising afan disposed in .said inlet member adjacent. said aperturmg. Y ,i y

' 16. A drier, comprising: a support; a relatively heavy supporting ring carried bysaid support; a blower Carried by said ring in-V ternally thereof; a relatively light and short 'inlet casing member supported by saidring,

providedl with inlet aperturing, andV enclos-V ing said -blower on one side of saidring;

a relatively light elongated outlet casing'. i

member also supported by said ring and en#` y Vclosing saidt blower on the other side of said ring; and aj heater, for heating the air current set up by said blower, mounted within said outlet member supportedby said blow-A uio er; said blower comprising a fan disposed in said inlet memberadjacentsaid apertur- 1'110.' y. A drier, comprising: a support; a relatively heavy supporting ring'carried by said support; a blower carried by said ring interjnally thereof and includingan electric? motorand a fan on thershajt of said motor; a relatively light and short inlet` casing memf ber supported by said ring, provided with inlet aperturing, and venclosing said blower on one side of said ring.; a'relatively light y elongatedoutlet casing Y' member also sup-4 ported by said ring and enclosing said blower on the other side of said ring; and a heater, for heating the air current set up by saidblower, mounted within said outlet member supported by said motor; said blower comprising a fan disposed in said inlet member adjacent said aperturing.

18. A drier, comprising: a motor; a fan operated thereby; a heating unit in the path of the air 'current set up by said 4fan and eective to warm the air in said current; and a resistance arranged in the circuit of said motor and positioned to radiate heat to said air current ahead of said heating unit.

19. A drier, comprising: a motor; a fan operated thereby; a heating unit in the path of the air current set up by said fan and effective to warm the air in said current after Brothers-ElectricCompany.

I fH'erebydsclaims claims `2, 3, 5

' I sulpp'prt, a lgl'owel'(and V a re yatively light first casing and heating unit onI one side of said ring',

supported bysaid' ring and enclosing said J of sald ringf` Ie-d1i7-23l2f-Wendell MartmfCleveland, Ohio.

' *'12, 1929. Disclaimer filed October 31, 1934i, by the assignee, The Martn sitioned to radiate heat to said air Current ahead of said heating unit.

20. A drier, comprising: a motor; a fan operated thereby; a heating unit in the path of the'air current set up by said fan and effective to warm the air in said current.; and a resist-ance arranged in the circuit of said motor and positioned to radiate heat to said air current ahead of said heating unit but beyond said fan.

21..A drier, comprising: a motor; a fan operated thereby; a heating unit in the path of the air current set up by said fan and effective to warm the air in said current; and a resistance arranged in the circuit of said motor and positioned in such air current ahead of said heating unit but beyond said fan.

In testimony whereof I hereunto affix my such air leaves said fan; and a resistance arsignature. 20 ranged in the circuit of said motoriand po- WENDELL L. MARTIN.

bxSQL/MMSE 8 and -1 1 which read as follows:

a. Support, a-relativelyr heavy supporting ring carried by said` heating unit supported by. said ring internally thereof, a

member supported by said and a relatively light casing memberl also blower'and heating'unit on the other side ring and enclosing said blower 3. In combination, a support, a relatively heavy supporting carried by said support, a; blower carried by said ring internally thereof, a relatively member supprted by sald ring and enclosing said blower on one side o a relatively Y said blower on the other side of said ring.

stretti ht second casing member also supported by said 'ring and enc osing l t 5. AA drier, comprising: a support, a relatively heavy supporting ring carried by 4said support; a blower 'carried by said r1nginternall motor and-a fan on the shaft of said motor; a re th ereof and including an electric atively hghtfirst caslng member sup orted by said ring and enclosing said blower on one side of said ring; and a relative y light second casing member also supported by said ring and enclosing said blower -on the other side of the ring.

mber supported ring; a. slatively light elongated outlet casing member also the other side of said ring;

enclosing-'said blower on port; a blower carried by said rlng mternally thereof;

by said ring and enclosing said blower on one side of said 8; A drier, comprising: a support; a relatively heavy sup-portingring carried by Y supported by said ring and and a heater within said outlet member for heating the air current set up by said blower.

11. A drier, comprising: a support; a relatively heavy supporting ring carried by said support; a blower carried by said ring internally thereof; a relatively light inlet casing member supported by said ring and enclosing said blower on one side of said ring; a relatively an e nclosing said b ower on the otherI side of said ring;

ht elongated outlet casing member also supported by said ring and a heater, for heating the air current set up by said blower, :mounted within said outlet member supported by said rin DRIERY. Patent dated March i ported by said ring and enclosing said blower on the other side of said ring; and a heater, for heating the air current set up by saidblower, mounted within said outlet member supported by said motor; said blower comprising a fan disposed in said inlet member adjacent said aperturing.

18. A drier, comprising: a motor; a fan operated thereby; a heating unit in the path of the air 'current set up by said 4fan and eective to warm the air in said current; and a resistance arranged in the circuit of said motor and positioned to radiate heat to said air current ahead of said heating unit.

19. A drier, comprising: a motor; a fan operated thereby; a heating unit in the path of the air current set up by said fan and effective to warm the air in said current after Brothers-ElectricCompany.

I fH'erebydsclaims claims `2, 3, 5

' I sulpp'prt, a lgl'owel'(and V a re yatively light first casing and heating unit onI one side of said ring',

supported bysaid' ring and enclosing said J of sald ringf` Ie-d1i7-23l2f-Wendell MartmfCleveland, Ohio.

' *'12, 1929. Disclaimer filed October 31, 1934i, by the assignee, The Martn sitioned to radiate heat to said air Current ahead of said heating unit.

20. A drier, comprising: a motor; a fan operated thereby; a heating unit in the path of the'air current set up by said fan and effective to warm the air in said current.; and a resist-ance arranged in the circuit of said motor and positioned to radiate heat to said air current ahead of said heating unit but beyond said fan.

21..A drier, comprising: a motor; a fan operated thereby; a heating unit in the path of the air current set up by said fan and effective to warm the air in said current; and a resistance arranged in the circuit of said motor and positioned in such air current ahead of said heating unit but beyond said fan.

In testimony whereof I hereunto affix my such air leaves said fan; and a resistance arsignature. 20 ranged in the circuit of said motoriand po- WENDELL L. MARTIN.

bxSQL/MMSE 8 and -1 1 which read as follows:

a. Support, a-relativelyr heavy supporting ring carried by said` heating unit supported by. said ring internally thereof, a

member supported by said and a relatively light casing memberl also blower'and heating'unit on the other side ring and enclosing said blower 3. In combination, a support, a relatively heavy supporting carried by said support, a; blower carried by said ring internally thereof, a relatively member supprted by sald ring and enclosing said blower on one side o a relatively Y said blower on the other side of said ring.

stretti ht second casing member also supported by said 'ring and enc osing l t 5. AA drier, comprising: a support, a relatively heavy supporting ring carried by 4said support; a blower 'carried by said r1nginternall motor and-a fan on the shaft of said motor; a re th ereof and including an electric atively hghtfirst caslng member sup orted by said ring and enclosing said blower on one side of said ring; and a relative y light second casing member also supported by said ring and enclosing said blower -on the other side of the ring.

mber supported ring; a. slatively light elongated outlet casing member also the other side of said ring;

enclosing-'said blower on port; a blower carried by said rlng mternally thereof;

by said ring and enclosing said blower on one side of said 8; A drier, comprising: a support; a relatively heavy sup-portingring carried by Y supported by said ring and and a heater within said outlet member for heating the air current set up by said blower.

11. A drier, comprising: a support; a relatively heavy supporting ring carried by said support; a blower carried by said ring internally thereof; a relatively light inlet casing member supported by said ring and enclosing said blower on one side of said ring; a relatively an e nclosing said b ower on the otherI side of said ring;

ht elongated outlet casing member also supported by said ring and a heater, for heating the air current set up by said blower, :mounted within said outlet member supported by said rin DRIERY. Patent dated March i 

